Gable Roof Eave Detail

If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch.

Gable roof eave detail.

The 12 12 roof pitch is also known as a square pitch roof since a 90 degree angle is formed at the peak of such roofs. Most gable roofs also have a rake cornice or rake extension formed on the gable ends. An eave is defined as the edge of the roof that overhangs the face of a wall. The three primary variables to consider when designing the eaves for a gable roof are the width of the gable trim the projection of the eaves and the details at the corner of the gable ends.

Architectural details direct 903 356 2158. A gable roof has a cornice along the side walls formed at the rafter ends. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Remember the roof on the return is there just to shed a small amount of water.

Many different designs can be created by variations in roof pitch gable end treatment mouldings and dimensions. In the gable the frieze can either match the horizontal frieze on the rest of the building or it can be reduced one step in dimensional lumber. If running trim is going to be used. A slight return just enough to keep water from pooling is all you need.

Fix a plywood board or proprietary tray to provide continuous support to underlay to prevent water retaining troughs. Fix a rafter spacer tray to provide a clear air path between underlay and insulation. Refer to my architectural roof types blog. This is created by extending the rafters out past the building ends.

To determine exactly what the rafter tail will look like i always make a full size drawing on a scrap of plywood of all the eaves elements including framing and finish materials see illustration above. Boxed eave detail works for both hip and gable roofs. Do not set it to match the main roof slope of the house. This first installment of a two part series focuses on eaves that do not return onto the gable.

In contrast a gable or rake is the overhang of a building that occurs on the side that is topped by a gable roof. The main component of any eaves detail is the rafter tail the part of the rafter that extends beyond the exterior wall. Select eave detail overhangs typically range from 9 to 18 in depth. Typically the same detail throughout the country typical eave section gable end elevation b.

Click to enlarge any image. Running trim can be used along the eaves of your gable either below a gable decoration or by themselves.